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US 9,869,202 B2Granted
Blade outer air seal for a gas turbine engine
AssigneeUnited Technologies Corporation
InventorsPaul M. Lutjen, Carson A. Roy Thill, Dominic J. Mongillo, Jr., Kevin D. Tracy, Jeffrey A. Perry, Thurman C. Dabbs
Life of this patent
Estimating the term…
Abstract
A gas turbine engine includes a turbine section including a plurality of blade outer air seals (BOAS) disposed therein, the BOAS including a BOAS body including a plurality of cooling holes defined in substantial conformance with a set of Cartesian coordinates as set forth in at least one of Table 1 and Table 2.
Claims20
A blade outer air seal (BOAS) for a gas turbine engine, comprising:
- a BOAS body including a plurality of cooling holes defined in conformance with a first set of Cartesian coordinates as set forth in Table 1, wherein the first set of Cartesian coordinates are provided with respect to a point P1 which is at a center of curvature of an arc W of the BOAS body, wherein a Z axis of the first set of Cartesian coordinates is directed toward the center of a curvature of the arc W of the BOAS body and a Y axis of the first set of Cartesian coordinates is directed away from a surface T of the BOAS body, wherein a measurement x1 in an X direction of the first set of Cartesian coordinates is normalized by a Y distance between a surface V of the BOAS body and the surface T of the BOAS body, wherein a measurement y1 in a Y direction of the first set of Cartesian coordinates is normalized by the Y distance between the surface V of the BOAS body and the surface T of the BOAS body, and wherein a measurement z1 in a Z direction of the first set of Cartesian coordinates is normalized by a radius of the curvature of the arc W of the BOAS body.
A blade outer air seal (BOAS) for a gas turbine engine, comprising:
- a BOAS body including a plurality of cooling holes defined in conformance with a second set of Cartesian coordinates as set forth in Table 2, wherein the second set of Cartesian coordinates are provided with respect to a point P2 which is at a center of curvature of an arc F of the BOAS body, wherein a Z axis of the second set of Cartesian coordinates is directed toward the center of a curvature of the arc of the BOAS body and a Y axis of the second set of Cartesian coordinates is directed toward a surface G of the BOAS body, wherein a measurement x2 in an X direction of the second set of Cartesian coordinates is normalized by a Y distance between the surface G of the BOAS body and a surface E of the BOAS body, wherein a measurement y2 in a Y direction of the second set of Cartesian coordinates is normalized by the Y distance between the surface G of the BOAS body and the surface E of the BOAS body, and wherein a measurement z2 in a Z direction of the second set of Cartesian coordinates is normalized by a radius of the curvature of the arc F of the BOAS body.
A gas turbine engine, comprising:
- a turbine section including a plurality of blade outer air seals (BOAS) disposed therein, the BOAS including a BOAS body including a plurality of cooling holes defined in conformance with a set of Cartesian coordinates as set forth in at least one of Table 1 and Table 2;
- wherein for Table 1 a first set of Cartesian coordinates are provided with respect to a point P1 which is at a center of curvature of an arc W of the BOAS body, wherein a Z axis of the first set of Cartesian coordinates is directed toward the center of a curvature of the arc W of the BOAS body and a Y axis of the first set of Cartesian coordinates is directed away from a surface T of the BOAS body, wherein a measurement x1 in an X direction of the first set of Cartesian coordinates is normalized by a Y distance between a surface V of the BOAS body and a surface T of the BOAS body, wherein a measurement y1 in a Y direction of the first set of Cartesian coordinates is normalized by the Y distance between the surface V of the BOAS body and the surface T of the BOAS body, and wherein a measurement z1 in a Z direction of the first set of Cartesian coordinates is normalized by a radius of the curvature of the arc W of the BOAS body;
- wherein for Table 2 a second set of Cartesian coordinates are provided with respect to a point P2 which is at a center of curvature of an arc F of the BOAS body, wherein a Z axis of the second set of Cartesian coordinates is directed toward the center of a curvature of the arc of the BOAS body and a Y axis of the second set of Cartesian coordinates is directed toward a surface G of the BOAS body, wherein a measurement x2 in an X direction of the second set of Cartesian coordinates is normalized by a Y distance between a surface G of the BOAS body and a surface E of the BOAS body, wherein a measurement y2 in a Y direction of the second set of Cartesian coordinates is normalized by the Y distance between the surface G of the BOAS body and the surface E of the BOAS body, and wherein a measurement z2 in a Z direction of the second set of Cartesian coordinates is normalized by a radius of the curvature of the arc F of the BOAS body.
Dependencies are inferred from the claim text.